Treatment and prevention of hypersensitivity and/or anaphylaxis with anti-ige antibodies in patients receiving replacement therapy
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United States of America Patent
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Issued Date -
Jan 15, 2009
app pub date -
Oct 4, 2005
filing date -
Oct 5, 2004
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Abandoned
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Abstract
The present invention relates generally to a method of treatment and/or prevention of hypersensitivity including anaphylaxis in patients receiving replacement therapy molecules that elicit an IgE-mediated response by administering an anti-IgE antibody or a binding fragment thereof. Anti-IgE antibodies inhibit IgE-mediated allergic reactions in the mammals and can also lower the risk of an anaphylactic reaction to a replacement therapy molecule. The administration of anti-IgE antibodies over time also downregulates the high-affinity IgE receptor, further decreasing the risk of hypersensitivity and/or anaphylaxis. The anti-IgE antibody binds to circulating or serum IgE and/or membrane form IgE on B-cells, but not to IgE bound to mast cells or basophils, as this may cause crosslinking. This method also reduces the dose and/or frequency of administration of the replacement therapy molecule by reducing or eliminating neutralizing IgE antibodies specific for the replacement therapy molecule.
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